Home / 12,478,464.40-18,717,696.60-10,210,982.80

Finding the Fourth Proportional to 12,478,464.40, 18,717,696.60 and 10,210,982.80

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Solution

The fourth proportional to 12,478,464.40, 18,717,696.60 and 10,210,982.80 is: 15,316,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,464.40 : 18,717,696.60 = 10,210,982.80 : x
  2. Step 2: Convert to fraction form
    12,478,464.40/18,717,696.60 = 10,210,982.80/x
  3. Step 3: Cross multiply
    12,478,464.40x = 18,717,696.60 × 10,210,982.80
  4. Step 4: Simplify right side
    12,478,464.40x = 191,126,078,038,218.50
  5. Step 5: Solve for x
    x = 191,126,078,038,218.50/12,478,464.40
  6. Step 6: Final answer
    x = 15,316,474.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.